function out = get_hog13_feature(patch, response_sz)
    temp = Hog13Feature(single(patch));
    h = response_sz(1);
    w = response_sz(2);
    out = zeros(h, w, 14, 'single');
    out(:,:,2:14) = temp;
    patch = mexResize(patch, [h, w],'auto');
    if size(patch, 3)>1
        patch = rgb2gray(patch);
    end
    out(:,:,1) = single(patch)/255 - 0.5;
end